我有控制器的Spring Boot测试:
@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class ExampleTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private ExampleDAO;
@Test
public void someTest(){
exampleDAO.save(someEntity);
// call to endpoint
}
}
我有两个数据库配置:
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "primaryManagerFactory", basePackages = { "com.example.repository.primary" })
public class PrimaryDbConfig {
和
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "anotherManagerFactory", basePackages = { "com.example.repository.another" })
public class AnotherDbConfig {
测试属性片段:
spring.primary.datasource.url=jdbc:h2:mem:primary;DB_CLOSE_ON_EXIT=FALSE
spring.primary.datasource.username=sa
spring.primary.datasource.password=
spring.primary.datasource.driverClassName=org.h2.Driver
spring.another.datasource.url=jdbc:h2:mem:another;DB_CLOSE_ON_EXIT=FALSE
spring.another.datasource.username=sa
spring.another.datasource.password=
spring.another.datasource.driverClassName=org.h2.Driver
spring.jpa.properties.hibernate.show_sql=true
GenericDAOImpl片段:
@PersistenceContext(unitName = "another-persistence-unit")
protected EntityManager entityManager;
@Override
@Transactional
public void save(T entity) {
entityManager.persist(entity);
}
当我运行测试时,exampleDAO.save(someEntity)
方法不会将任何SQL保存或输出到日志。 exampleDAO
不是主要数据源。
如果我改为:
@Override
@Transactional
public void save(T entity) {
entityManager.unwrap(Session.class).save(entity);
}
效果很好,可以保留数据。但是,与主数据源DAO相同的方法会使实体持续EntityManager
。
为什么用Session
保存实体而不用EntityManager
保存实体?
答案 0 :(得分:5)
如果使用两个DB,应创建单独的TransactionManager-s并指定
@Override
@Transactional("transactionManagerName")
public void save(T entity) {
entityManager.persist(entity);
}